You could also try ZRAM, this is what I use for swap, it’s not entirely the same as swap but the system will still see and list it as swap.
It compresses data stored on the RAM rather than relying on SSDs for swap (RAM is a lot faster than SSD flash). However it will use processing power to compress and decompress so it may not be the complete solution depending on the CPU but it will get more out of RAM. May not be the solution for you but just throwing another option out there.
I used this guide last November on Arch so these steps still work.